"At no time did the Russian military aircraft cross into UK sovereign airspace."
Footage reportedly showing the interception, filmed from a Russian jet, emerged in the wake of the incident, though a spokesman for the MoD said the video did not depict yesterday's events.
He said the footage, published by Russian television channel TV Zvevda, at one point showed a French Mirage jet, which wasn't involved in the incident.
RAF jets appear in the video, but the MoD does not know where and when it was filmed, he added.